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    • 3. 发明公开
    • PIPELINE CLOSURE
    • 管道闭幕
    • EP2457010A1
    • 2012-05-30
    • EP10737096.7
    • 2010-07-02
    • Pipeline Engineering & Supply Company Limited
    • LIDSTER, PaulWARRINER, Duncan
    • F16L55/11F16J13/10F16J13/20
    • F16L55/11F16J13/08F16J13/10F16J13/18F16J13/20
    • The invention provides a closure suitable for use on pipelines and pressure vessels, and which can resist high pressure but which can be opened quickly when the pressure differential across the closure has been reduced to zero. The closure comprises a door (3) which fits into an aperture of a hub (1) in a member (2) to be closed. A number of arcuate locking members or segment blocks (30) disposed around the periphery of the door for locking the door (3) to the hub (1). The locking members (30) are constrained by guide pins (34) to move along guide slots (40) in the door. A drive plate (101) is rotatably mounted on the door (3) and includes a plurality of drive slots (122) which engage with the guide pins (34). Rotation of the drive plate (101) relative to the door (3) causes the locking members (30) to move radially outwardly and circumferentially such that the locking members are moved from an unexpanded unlocked position to an expanded locking position in which the locking members (30) engage both the door (3) and the hub (1) thereby preventing opening of the door. A key member (82) is moved to a position between two adjacent locking members(30) to lock the closure. The closure is unlocked by removing the key member (82) and then rotating the drive plate (101) to move the locking members (30) back to the unexpanded unlocked position.
    • 4. 发明公开
    • Verschlussvorrichtung
    • EP2365234A1
    • 2011-09-14
    • EP11001785.2
    • 2011-03-03
    • HOWALDTSWERKE-DEUTSCHE WERFT AG
    • Nowoisky, Adrian, Dipl.-Ing.Knop, Christian, Dipl.-Ing.Pantke, Marcel, Dipl.-Ing.
    • F16J13/18B01J3/03B63G8/00B63G8/40
    • F16J13/18B01J3/03B63B19/12F16H25/20
    • Eine Verschlussvorrichtung weist eine Verschlussklappe (6) auf, die an mindestens einem außenseitig einer Öffnung angeordneten Scharnier (10) angelenkt ist. An dem Scharnier (10) sind Betätigungsmittel zum Öffnen und Verschließen der Verschlussklappe (6) angeordnet, die ein Schraubgetriebe beinhalten.
    • 闭合装置包括封闭翼片(6),其由布置在开口的外侧的铰链铰接,以及设置在铰链处以打开和关闭封闭翼片的操作单元,其中操作单元具有螺旋 形成为主轴驱动的齿轮。 主轴驱动装置的螺纹主轴(28)的纵向轴线与铰链的枢转轴线重合。 主轴驱动器的主轴螺母(26)固定在与闭合盖连接的铰链悬架上。 闭合装置具有用于防止螺纹主轴旋转的联锁单元。 闭合装置包括封闭翼片(6),其由布置在开口的外侧的铰链铰接,以及设置在铰链处以打开和关闭封闭翼片的操作单元,其中操作单元具有螺旋 形成为主轴驱动的齿轮。 主轴驱动装置的螺纹主轴(28)的纵向轴线与铰链的枢转轴线重合。 主轴驱动器的主轴螺母(26)固定在与闭合盖连接的铰链悬架上。 闭合装置具有用于防止螺纹主轴旋转的联锁单元。 主轴驱动器具有第二主轴螺母,在该第二主轴螺母处形成用于操作杆(8)的接收。 互锁单元用于防止第二主轴螺母的直线运动。 两个主轴螺母具有不同的螺距。
    • 7. 发明公开
    • CLOSURE SYSTEM FOR A PRESSURE VESSEL
    • 闭幕压力容器
    • EP1370465A4
    • 2006-07-19
    • EP00958097
    • 2000-09-07
    • SAIL STAR INC
    • BERGLUND DAVID N
    • F17C13/06B01J3/03D06F43/00F16J13/12F16J13/16F16J13/18B65D1/00
    • F16J13/12D06F43/00F16J13/18
    • A closure system which provides a lubricated lock ring on a hinged door assembly rather than proximate a pressure vessel is provided. The configuration of this system removes lubricants from the region immediately adjacent a pressure vessel entrance to be sealed by the door assembly. A shorter entrance tunnel for access to the pressure vessel interior is also provided by this configuration. A clamp ring having radially extending lugs is rigidly affixed proximate to and partially defining the pressure vessel entrance. The door has a continuous thread about an outer circumferential surface thereof. A lock ring having a complementary interior continuous thread is in rotational communication with the threaded circumferential surface of the door. The lock ring also has plural, inwardly projecting lugs which are capable of passing between the clamp ring lugs when the door is swung toward the clamp ring. The lock ring is capable of being rotated by a rotary actuator for engagement of the clamp ring lugs with the lock ring lugs. The door may be provided with a sight glass and light source for viewing the interior of the pressure vessel. The door may also be provided with a face plate on the door for maintaining the lock ring in concentric alignment with the door to prevent the cooperating threads from binding. Limit switches may be employed to detect when clamp ring and lock ring lugs are aligned for door closure, and when the lock ring is rotated by the desired amount. A proximity sensor may be provided for making sure the door is in a closed position before enabling lock ring rotation.